It was typical to use the derived values (burned-in values) for UUID
and adapter identities when you deployed (installed, booted, or accessed) the
Cisco Unified Computing System (UCS) Blade with the Rack-Mounted (traditional
server) paradigm. In the full Logical Server paradigm deployment, you need to
have identities defined with the logical service profile that will then be
applied to the Cisco UCS blade. A Logical Server is defined with identity
(UUID, MAC/WWN addresses, and VLAN/VSAN requirements). The profile can be
associated with only one blade at a time, but the association can be changed if
there is a problem with a particular blade, or hardware maintenance is required
on a particular blade.

The Mobile (Relocatable) Logical Server concept allows the same logical
server to be booted on different blades at different times. When a blade is
associated with a server profile, it inherits all its identity and boot
information from the profile. This model works best when the OS is booted off a
SAN LUN. This document shows you how to create pools of identity information
defined within the Logical Server Profile to facilitate the Mobile Logical
Server concept:

Create UUID Pools

Create MAC Pools

Create WWN Pools

Once these pools are created, it simplifies blade management within the
Cisco UCS environment.

The Cisco UCS leverages itself to a model where server farms can be
easily allocated and deployed, without the need to pre-associate specific
hardware to specific server roles. Server pools lend themselves to the server
farm model. Note that you still need a separate logical server profile for each
server that is booted simultaneously. If you want to deploy a farm of 50 web
servers, you need 50 separate (but hopefully very similar) profiles. This
Server Pool feature facilitates easy deployment of the sever farm model within
the Cisco UCS. This document shows you how to create Server Pools that provide
a method to use multiple logical server profiles to create servers in a farm.

In the rack-mounted (traditional server) blade management paradigm, it
was typical to use the derived values for UUID and adapter identities. In the
mobile (relocatable) logical server paradigm, you need to have identities
defined with the logical service profile that are then applied to the blade.
These address the key characteristics of the Rack-Mounted (traditional server)
and Mobile Logical Server Blade management paradigm within the Cisco UCS.

Service Profile still required since no network/SAN connectivity is
permitted without Service Profile

Distinct profile for each blade you want to boot
simultaneously

Can clone profiles or create from templates to
simplify

Blade identity (UUID / WWN)

Use default built into BIOS

"Derived" UUID is in Cisco CLI (the default) and shows up as single
"0" in the Cisco UCS GUI

vNIC / vHBA

Must create vNIC/vHBA for every adapter you want connected in the
Blade OS

vNIC, vHBA identities (MAC, WWN)

Can use default built into cards

Boot Order

Can set through profile or leave blank and control as ordinary
server through BIOS

2. The Profile Elements of the Mobile (Relocatable) Logical Server
paradigm are these:

The UUID is a 128-bit number (32 hex digits, 16 groups of 2 hex
digits). It is supposed to uniquely identify a component worldwide. There are
various UUID generation algorithms. You can also use a UUID suffix pool. Cisco
UCS Manager automatically generates a unique prefix so that you are guaranteed
a unique UUID for each logical server:

Do not use the "derived" value

Make up (or generate) the UUID that moves with
profile

Use the UUID pool to guarantee uniqueness among all profiles that
use the same pool

vNIC, vHBA identities (MAC, WWN)

Do not use the "derived" value

Make up the MAC/WWN that moves with profile

Use the MAC/WWN pool to guarantee uniqueness among all profiles
that use the same pool

Server Pools are an efficient way to pool server blades for
organizations, memory requirements, CPU, speed, cores, etc. Every blade that is
booted simultaneously must have its own server profile. The profile mechanism
still facilitates multiple blade servers that are treated as a pool of servers.

Pools can be manually populated or auto-populated with Server Pool
policies. A blade can be in multiple pools at the same time. Whichever profile
"claims" a particular blade is its current "owner," regardless of the number of
pools it is in.

In order to actually use a server pool, you associate a Service Profile
with the pool. The Cisco UCS Manager automatically chooses an available blade
from the pool (An available blade is one currently discovered but not
associated with any profile, and not in the process of being associated or
disassociated.). This document shows you how to create Server Pools in the
Cisco UCS.

Log in to the Cisco UCS Manager GUI.

In the navigation pane, click the Servers
tab.

In the Filter, pull down to
Pools.

Expand the root.

Choose Server Pools, right-click, and choose
Create New Server Pool.

Give the pool a name and description, then click
Next.

Add a server to the pool when you choose the server and add it to
the right side.

Choose Finish when the server is in the “Pooled
Servers”.

The new pool now appears and shows the server in the pool. You can
add additional servers to the pool with the “Add Servers”
link.

The UUID is a 128-bit number (32 hex digits, 16 groups of 2 hex
digits). It is supposed to uniquely identify a component worldwide. There are
various UUID generation algorithms. You can also use a UUID suffix pool. The
Cisco UCS Manager automatically generates a unique prefix so that you are
guaranteed a unique UUID for each logical serve. This shows how to create
unique identifier (UUID) blocks for the Cisco UCS Blade:

Log in to the Cisco UCS Manager GUI.

In the navigation pane, click the Servers
tab.

In the Filter, pull down to
Pools.

Expand the root.

Browse to Pools > UUID Suffix
Pool.

Right-click the UUID Suffix Pool and choose
Create UUID Suffix Pool.

Give the suffix a name and description, then click
Next.

Fill in the UUID Suffix blocks, and click OK.

Click Finish.

Verify the UUID Pool when you open the UUID-Test-plan pool and
confirm that UUID suffixes were created.

MAC pools are a range of MAC addresses created by the UCS administrator
and network admin to be used by Service Profiles. Once a MAC is associated to a
Service Profile, it stays with that profile until it is deleted. Any blade that
gets associated to the Service Profile receives that MAC address to be used at
runtime.

Log in to the Cisco UCS Manager GUI.

In the navigation pane, click the LAN
tab.

In the Filter, pull down to
Pools.

Expand the root.

Browse to MAC Pools.

Right-click MAC Pool, and choose Create
MAC Pool.

Give the Pool a name and description, then click
Next.

Click Add to add the MAC
addresses.

Change one of the leading octets to a new number, such as 50, and
set the size field to a number, such as 100.

Create a Pool of WWN addresses for Service Profiles. WWN pools are a
list of the WWN SAN addresses created by the UCS administrator or Storage admin
to be used by Service Profiles. Once a WWN is associated to a Service Profile,
it stays with that profile until it is deleted. Any blade that gets associated
to the Service Profile receives that WWN address to be used at runtime.